﻿/*
 * Copyright © 2010-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using Microsoft.Extensions.Logging;
using Spring.Core.TypeResolution;

namespace Spring.Context.Attributes.TypeFilters;

/// <summary>
/// Abstract Type Filter that provides methods to load a required type from assembly.
/// </summary>
public abstract class AbstractLoadTypeFilter : ITypeFilter
{
    private static readonly ILogger<AbstractLoadTypeFilter> Logger = LogManager.GetLogger<AbstractLoadTypeFilter>();

    /// <summary>
    /// Required Type to compare against provided Type
    /// </summary>
    protected Type RequiredType;

    /// <summary>
    /// Determine a match based on the given type object.
    /// </summary>
    /// <param name="type"></param>
    /// <returns>true if there is a match; false is there is no match</returns>
    public abstract bool Match(Type type);

    /// <summary>
    /// Is loading a Type from a string passed to method in the form [Type.FullName], [Assembly.Name]
    /// </summary>
    protected void GetRequiredType(string typeToLoad)
    {
        try
        {
            RequiredType = !string.IsNullOrEmpty(typeToLoad) ? TypeResolutionUtils.ResolveType(typeToLoad) : null;
        }
        catch (Exception)
        {
            RequiredType = null;
            Logger.LogError("Can't load type defined in expression:" + typeToLoad);
        }
    }
}